diff --git a/blinkpy.py b/blinkpy.py
index 7f58a4c..67aa2ca 100644
--- a/blinkpy.py
+++ b/blinkpy.py
@@ -422,11 +422,12 @@ class Blink(object):
 
     def get_auth_token(self):
         """Retrieves the authentication token from Blink"""
+        
         if not isinstance(self._username, str):
             raise BlinkAuthenticationException(ERROR.USERNAME)
         if not isinstance(self._password, str):
             raise BlinkAuthenticationException(ERROR.PASSWORD)
-
+        
         headers = {'Host': DEFAULT_URL,
                    'Content-Type': 'application/json'}
         data = json.dumps({
diff --git a/tests/test_blink_system.py b/tests/test_blink_system.py
new file mode 100644
index 0000000..9027beb
--- /dev/null
+++ b/tests/test_blink_system.py
@@ -0,0 +1,41 @@
+import requests
+import unittest
+import blinkpy
+from unittest import mock
+import constants as const
+
+USERNAME = 'foobar'
+PASSWORD = 'deadbeef'
+
+class TestBlinkSystem(unittest.TestCase):
+    """Test the Blink class in blinkpy."""
+    def test_initialization(self):
+        """Verify we can initialize blink."""
+        blink = blinkpy.Blink(username=USERNAME, password=PASSWORD)
+        self.assertEqual(blink._username, USERNAME)
+        self.assertEqual(blink._password, PASSWORD)
+
+    def test_no_credentials(self):
+        """Check that we throw an exception when no username/password."""
+        blink = blinkpy.Blink()
+        with self.assertRaises(blinkpy.BlinkAuthenticationException):
+            blink.get_auth_token()
+        with self.assertRaises(blinkpy.BlinkAuthenticationException):
+            blink.setup_system()
+
+    def test_no_auth_header(self):
+        """Check that we throw an excpetion when no auth header given."""
+        blink = blinkpy.Blink(username=USERNAME, password=PASSWORD)
+        with self.assertRaises(blinkpy.BlinkException):
+            blink.get_ids()
+    
+    @mock.patch('blinkpy.getpass.getpass')
+    def test_manual_login(self, getpwd):
+        """Check that we can manually use the login() function."""
+        blink = blinkpy.Blink()
+        getpwd.return_value = PASSWORD
+        with mock.patch('builtins.input', return_value=USERNAME):
+            blink.login()
+        self.assertEqual(blink._username, USERNAME)
+        self.assertEqual(blink._password, PASSWORD)
+        
\ No newline at end of file